There can be a good and valid reason for using services like rec sheets, stock analysis, or various other subscriptions: If I can't find the time, or lack the patience/ understanding/ nerve to do the analysis myself, I pay somebody that does have the time and knows how to use those tools.
As regards "special knowledge" and "little-known background information" - sure, some Analysts have done their homework and collected useful information, which they sell to paying customers.